This event is linked to Halley’s comet, and occurs as another comet, Tsuchinshan-ATLAS, remains visible. But a nearly full ...

Friday, October 18There's still time to catch Comet C/2023 A3 (Tsuchinshan-ATLAS) in the west after sunset, even as it pulls ...

The stormy sky above Target Field was dark red, adorned with a rainbow and purple lightning in the sky. It genuinely looked ...

Nope. Even at night, there’s some light in the sky. There’s the moon, of course, but also, depending on where you live, ...

Each Monday, I pick out North America’s celestial highlights for the week ahead, which include a conjunction between the moon ...

The display was seen from the mountains to the Atlantic beaches and lasted intermittently for hours.

Our star chart is designed to get you out learning the night sky within ... becomes fully dark-adapted. (This can take 15 to 20 minutes for adults, somewhat less for children.) Red light allows ...

Estimates of how fast the universe is expanding disagree. Could a new form of dark energy resolve the problem?

An outburst from elevated solar activity created conditions on Thursday that kept people’s eyes glued to evening views all over the Northern Hemisphere.

The latest numbers from the Dark Energy Survey (DES) indicate that 31.5% of the universe is matter (a combination of dark and ...

“Astrotourism and dark sky messaging complement our Red Emerald Strategic Plan, which aims to elevate life in Utah through responsible tourism stewardship. Preserving dark skies helps ...

Deadpool has floated a few “Brown Sky” ideas for improving Disneyland with his brand of comic book action and R-rated comedy ...